diff options
Diffstat (limited to 'lib/system.nim')
| -rw-r--r-- | lib/system.nim | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/lib/system.nim b/lib/system.nim index 75d1d40a6..59faa83fb 100644 --- a/lib/system.nim +++ b/lib/system.nim @@ -222,8 +222,8 @@ type set*{.magic: "Set".}[T] ## Generic type to construct bit sets. type - Slice* {.final, pure.}[T] = object ## builtin slice type - a*, b*: T ## the bounds + Slice*[T] = object ## builtin slice type + a*, b*: T ## the bounds when defined(nimalias): {.deprecated: [TSlice: Slice].} @@ -3247,4 +3247,12 @@ proc procCall*(x: expr) {.magic: "ProcCall".} = ## procCall someMethod(a, b) discard +proc `^`*(x: int): int {.noSideEffect, magic: "Roof".} = + ## builtin `roof`:idx: operator that can be used for convenient array access. + ## ``a[^x]`` is rewritten to ``a[a.len-x]``. However currently the ``a`` + ## expression must not have side effects for this to compile. Note that since + ## this is a builtin, it automatically works for all kinds of + ## overloaded ``[]`` or ``[]=`` accessors. + discard + {.pop.} #{.push warning[GcMem]: off.} |